[mythtv-users] RAID on Fedora Core 3?
Max Waterman
davidmaxwaterman at fastmail.co.uk
Fri Dec 24 16:17:22 UTC 2004
hrm, good feedback.
I think most of the advice will assume you'll be using the master
at the same time as the slave - usually in the same RAID.
I suppose the master/slave reliability issue is valid enough though,
and is a good enough argument against it on it's own :(
I am wondering if the idea of grouping the master and slave devices
in different arrays will make any difference. I'll give it a try
since the alternative (two 4 channel s/w RAID boards) yet is more
money ;)
thanks.
Max.
Paul Barker wrote:
> Hi
>
> AFAIK its a bad idea to put slave IDE devices into a software RAID set.
> Firstly it will upset performance and secondly there's a good chance
> that if you lost one of the disks on that channel then it would take out
> the other also. (ie loose the Primary master and the Primary slave goes
> too. So even if the Primary slave wasn't physically bad you'd still end
> up doing recovery on both arrays)
>
> I have 2 X 2 channel PATA cards and tried putting slave devices on and I
> had problems even getting the OS to see the drives properly to create
> the RAID set. Got timeouts etc trying to bring a RAID5 set online. I now
> have 4 disks on these 2 controllers in RAID5 all on the masters and a
> RAID1 set for my OS on the motherboard IDE masters.
>
> I guess there's no harm in trying, YMMV but I think even the RAID howto
> it advises against it.
>
> Cheers
>
> Paul
>
>
> Paul Barker
>
>
>
> pbarker at ntlworld.com <mailto:pbarker at ntlworld.com>
> IM: spookt2000 at yahoo.co.uk
>
>
>
>
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